Intel S7000FC4UR Product Guide - Page 33

Each power supply module requires one power cord to supply AC power to the system. One power supply ships with the standard system. When two power supply modules and two power cords are installed, the system supports (1+1) power cord redundancy. This allows the system to be powered by two separate AC sources. In the 1+1 configuration, the system continues to operate without interruption if one of the AC power sources fails. Each power supply module has three status LEDs next to the input connector. A BC AF002243 LED Location A (left) B (center) C (right) Purpose Power Good LED (green) Fault LED (amber) AC OK LED (green) Description This green LED is driven by internal circuitry and is lit whenever the power is turned on. This amber LED is driven by internal circuitry and is lit when a power rail has failed. The LED is lit even if the power supply is in a latched state. The only time (during a fault) when it is not lit is if the +3.3VSB is lost. The LED is not lit when the power supply is turned off by powering down the system. This green LED is driven by internal circuitry and is lit whenever the AC power cord is plugged in to an active AC power source. Figure 7. Power Supply Indicators Intel® Server System S7000FC4UR Product Guide 15